Old 12-28-2014, 04:22 AM #1
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Old 12-28-2014, 05:31 AM #2
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I'm a newbie compared to you, welcome back. Like your Poo bear
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Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions: - https://laserpointerforums.com/f37


Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be ~very~ roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Relative Brightness vs Wavelength Calc: https://tinyurl.com/RHD-brightness

High Current Pulse Diode Drivers: https://tinyurl.com/ya7whuk3
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Old 12-28-2014, 10:45 AM #3
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Welcome back. Nice to see another Michigander.
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Lasers:
405nm E-bay 303 host (peak 113mW) 13% IR dead
405nm Ehgemus host 900mW (peak 635mW 3E lens) had 2 both died in first minute
450nm home made labby NUBM44 6w (peak 7.2w)
445nm Ehgemus RPL host 3W (peak 3.5W)
445nm home made labby 3W (peak 3.1W)
445nm 501b by Blord 2.5W (peak 2.7W)
447nm Dragon Lasers Spartan 1W (peak 1.3W)
520nm custom Ehgemus host NDG7475 1W (peak 1.5W)
520nm Ehgemus host PL520-B1 120mW (peak 143mW)
532nm labby 500mW (peak 630mW)
532nm Dragon Lasers Viper 75mW (peak 122mW)
532nm C6 host (peak 103mW)
532nm E-Bay 303 host 200mW (peak 95mW) 15% IR
589nm Dragon Lasers Spartan 50mW (peak 115mW)
650nm C6 host (peak 153mW)
650nm E-Bay 303 host 200mW (peak 141mW) 75% IR
650nm DVD diode Mini Mag host 54mW (my first build)
650nm dollar store mini pen 5mW X2

808nm Wicked Lasers E2 400mW (peak 598mW)

Expanders & Googles etc:
Dragon Lasers 10x Beam Expander
Dragon Lasers "new" 2x Beam Expander
Dragon Lasers DGTBF
Dragon Lasers LSG02 goggles 190-548nm
Eagle Pair SL-BLG2 goggles 190-540nm

LPM:
nospin Ophir 20c-A-1-Y MrCrouse full wrap heatsinked

Flashlights:
Fenix tk61vn
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Old 12-28-2014, 02:27 PM #4
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Default Re: I'm Back!

Welcome back, your dreams are your ticket out ! LOL I guess you guys are too young to remember Welcome Back Kotter ! LOL Cheers !
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My L.A.S.E.R.S:

405nm 1.1W C-11 Smooth Flow Mrcrouse Kit
445nm 3.2W Mrcrouse Mace Of Doom Kit
445nm 1.6W Pocket Rocket Pman Special Custom *Al Heatsink
447nm 1W Dragon Lasers Spartan Fried Diode and Lens
447nm 1W Dragon Lasers Spartan working perfectly
450nm 170mw Mrcrouse 501b Kit
520nm 100mw Mrcrouse 501b kit
532nm 100mw SD Laser 303
532nm 100mw SFCG-100
532nm 100mw Classic Playmates Phaser Ghetto Build
532nm 300mw SkyLasers HL-532-300
638nm 220mw Mrcrouse 501b kit
650nm 100mw Pen
650nm 200mw SFCR-200
650nm 300mw Mrcrouse Ultrafire 903 Kit
660nm 300mw RL-118 with LPC-840


NOIR Lasershields DBY style #39 laser goggles
Eagle Pair® 190-540nm & 800-1700nm OD5 Laser Safety Goggles
Laserbee II Deluxe 3W LPM

LPF - Fueling Your Laser Fire
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Old 12-28-2014, 08:55 PM #5
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Default Re: I'm Back!

Welcome back!

-Alex
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